<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script src="https://cdn.jsdelivr.net/npm/vue@2.6.12"></script>
</head>
<body>

<div id="app">

    <li v-for="item in items">
        {{item.message}}
    </li>



</div>


<script>
    var vm = new Vue({//
        el:"#app",
        // model
        data:{
            items: [
                {message: "A"},
                {message: "B"},
                {message: "C"},
                {message: "D"},
            ] //[]表示数组 {}表示对象
        }
    })
</script>


</body>
</html>